Wow. I just stumbled upon this excellent video. This really important for me in one of my projects. Great presentation. Very simple. I’m going to look at the rest of your videos now. Thanks for the time you spent on this.
Thank you very, very much for this video. The variable voltage input method AllAmericanFiveRadio demonstrates allowed me to discover a few dead 40106s I didn't initially know how to determine the functionality of.
Hello Rick, Good to see you again and I trust your doing well. Always great demonstrations, graphics and explanations. I have learned so much from watching your channel for many years, Thank you. Have a Happy 4th, all the best, Cass.
Was wondering if you had a video on how to build a spark plug tester. I have one of the old champion machines but the wires were a mess and wanted to get it working. One fellow told me i need a vibrator to make it work but have no idea how to wire it all up. Thanks for the info in your videos
I'm a bit confused at to why the circuit triggered on the way *up* during the slow voltage increase, but when a sine wave was applied, the square wave's position made it appear to me as though it were triggering on the descending slope of the sine wave. You mentioned it was 180º out of phase, so I don't think I'm imagining things, but I'm not sure I understand why the behavior seems different with a higher-speed sine wave triggering it than when one simply raises the voltage slowly by hand. Surely the trigger isn't •that• slow, I'd tend to think. But then again, I don't know from Schmitt triggers. (8^D) I'm also writing this before the video has ended, so maybe you're about to tell us that this is a really high-frequency since wave, and the phase shift is caused by the Schmitt trigger's time delay.
The output is a square wave if the input is a sign wave or a triangle wave, which is at the at the end of the video. The trigger points are the same for both or any wave.
@@AllAmericanFiveRadio If you use an oscilloscope then the circuit must be powered, but i want to make measurement without using power on the circuit which i want to make tests . I have an idea : If i have a circuit with some logic gates and i want to test those logic gates with digital multimeter only, what can i do then? i will use external 5Vdc with max current source 10mA. if i want to test AND gate or OR gate or even Schmitt Trigger , then i will connect 5Vdc to Vcc pin and 0 Vdc GND pin and connect + probe to output and - probe to GND and connect two wires one to input A and the other to input B if it was AND or OR gate and see the result . What do you think of that idea ?
